For stability at speed, responsiveness, edge hold and pop I like and recommend a decently stiff traditional camber board.
Two such examples come to mind:
Rome Agent (traditional camber version) - almost twin
Ride DH - true twin
EDIT: In terms of RC boards the only two companies I've experienced/heard good things about when it comes to good stability at speed, responsiveness and edge hold are Lib Tech and Never Summer.
days not on snow in 2011: 11
Last edited by thetraveler; 02-07-2011 at 04:37 PM.